Castle Puzzle

About Castle Puzzle: Colorful Strategy Puzzle with Merging Units

Castle Puzzle is a colorful strategy puzzle game where a tiny army takes on a mighty fortress. Recruit warriors, archers, mages, and dragons, merge matching units to make them stronger, and place troops carefully on a tiled battlefield. Because your forces attack automatically, every placement decision carries real weight. The goal is to break through the castle's defenses while keeping your king safe across each level.

How to Play Castle Puzzle: Destroy Castle Structures, Protect Your King

Each level asks you to destroy the required castle structures without losing your blue king. Troops attack automatically whenever targets enter range, so positioning and merging are the core decisions you make.

Recruiting and Placing Units

• Select a unit button, then select a valid tile on the board to recruit that unit to that position.

Merging and Repositioning

• Drop a deployed unit onto another unit of the same type and level to merge them into a stronger version.
• Drag any deployed unit to a new tile to reposition it on the battlefield.

Collectibles and Pausing

• Select collectibles on the board to pick them up.
• Use the Pause and Sound buttons in the interface to manage the session.

Controls

• Left mouse button (desktop): Tap a unit button to select it, tap a valid tile to recruit, drag units to reposition or merge, tap collectibles to collect
• One finger (mobile): Tap a unit button to select it, tap a valid tile to recruit, drag units to reposition or merge, tap collectibles to collect
• Drag (desktop or mobile): Move a unit from the bottom panel onto the board, or reposition a deployed unit
• Drop onto matching unit: Merge two units of the same type and level
• Esc or P (desktop): Pause the game
• Pause button: Pause the game
• Sound button: Toggle sound

Games You Might Like

If the merge-and-defend loop in Castle Puzzle appeals to you, Fortress Merge delivers a similar blend of castle defense and merging mechanics where every puzzle solved strengthens your fortifications against waves of enemies. For a broader take on the same formula, Army Evolution: Merge & Tactics lets you combine identical soldiers across different eras — from knights and mages to futuristic units — in a strategy game built around upgrading through merging.

Browse the full strategy games collection for more titles that reward careful unit placement, or explore the puzzle games category for challenges that test spatial thinking and planning.